ASKMANGA

Many, many years ago, a ninja named Kagetora devoted his life to
protecting Princess Beni (”Beni-Hime”). Unfortunately, they were
attacked and Kagetora was flung into a lake, and sank to the bottom… And
is somehow warped to the future where he sees the princess Beni being
kidnapped.Little does Kagetora know that Beni is not the real
princess, but rather her descendant. Beni, on the other hand, thought
that Kagetora was just a cosplayer. Beni, the daughter of a rich man has
already been kidnapped a hundred times already... But fear not because
Kagetora is here. Will Kagetora be able to go back to the past, or will
he remain by Beni’s side forever?